From 3c0fa16bd01db16e22c9291679fb35da45e8478a Mon Sep 17 00:00:00 2001
From: Alexander Kiranov <xhaskx@gmail.com>
Date: Sat, 25 Nov 2023 12:46:41 +0200
Subject: [PATCH] added markdownlint github workflow

---
 .github/workflows/markdownlint.yml | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 .github/workflows/markdownlint.yml

diff --git a/.github/workflows/markdownlint.yml b/.github/workflows/markdownlint.yml
new file mode 100644
index 0000000..403e1ad
--- /dev/null
+++ b/.github/workflows/markdownlint.yml
@@ -0,0 +1,26 @@
+name: validate (lint) markdown files
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: check out repository code
+        uses: actions/checkout@v4
+
+      # NOTE: heavy node.js is used only to run markdownlint - the same tool as in my editor (Visual Studio Code)
+
+      # source: https://github.com/nodesource/distributions#debian-and-ubuntu-based-distributions
+      - name: add node.js deb source
+        run: |
+          apt-get install -y ca-certificates curl gnupg && mkdir -p /etc/apt/keyrings \
+          && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+          && NODE_MAJOR=20 \
+          && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
+      - name: install node.js
+        run: apt-get update && apt-get install nodejs -y
+
+      - name: install markdownlint-cli
+        run: npm install -g markdownlint-cli
+
+      - name: validate all markdown files
+        run: cd "${{ github.workspace }}" && markdownlint -p .gitignore .